Lewis



Jan. 31, 1956 w, zw s 2,732,933

SAFETY RAZOR BLADE HOLDERS Filed June 22, 1955 Maw-"5414, mwgwmInverztor W/LLIAM LEW/S Attorney United States Patent SAFETY RAZOR BLADEHOLDERS Application June 22, 1953, Serial No. 363,307

6 Claims. (Cl. 206-16) This invention concerns holders for safety razorblades.

I have found that razor blades which normally lose their keenness aftera few days, will maintain a good sharp edge for several weeks withoutany stropping or sharpening if air is excluded from the edge by itsimmersion in oil or grease or powder, such as tale. It appears that theloss of keenness is largely due to the formation of minute rustparticles on the blade edge.

It is the object of the invention to provide holders for blades in whichthey may be kept between use with their edges protected by a protectivesubstance and from which they may be removed clean and ready for use.

Holders according to the invention have a body made in one or moreparts, a slot or slots in the body for the insertion and removal of ablade, at least one receptacle for protective substance to encompass theblade edge or edges and wiping means in the withdrawal path of the bladeedge to clean off adhering substance and return it to its receptacle.

The invention may be applied to holders for single or double edgedblades. In the former case a holder having an open ended slot may beused for the insertion and withdrawal of a blade. In the latter case asimple slide may be used to carry a blade into and out of the holder.

The wiping means may preferably be constituted by strips which engagethe blade surfaces from either side upon its withdrawal. These stripsare preferably made of oil and grease resistant material such assynthetic rubber or they can be made of wicking or like woven stripwhere a powder is used.

The above and other parts of the invention are embodied in preferredforms of holder which will now be described in some detail by way ofexample with reference to the accompanying drawings in which:

Fig. 1 is a side elevation of a holder developed for single edgedblades.

Fig. 2 is a section on the line IIII of Fig. 1.

Fig. 3 is a side elevation of a holder having a slide and adapted foruse with double-edged blades.

Fig. 4 is a section on the line IVIV of Fig. 3.

Fig. 5 is a section on the line V-V of Fig. 3.

Fig. 6 is a top view of an alternative form of holder for single edgedblades.

Fig. 7 is a section on the line VII-VII of Fig. 6.

A simple form of holder for single edged blades is illustrated in Figs.1 and 2; it comprises a body of plastic, metal or other suitablematerial having a suitably shaped slot 1 somewhat longer than a normalrazor blade formed at its centre between its two halves 2 and 3 andextending into a cylindrical chamber 4 which runs substantially the fulllength of the body.

The slot 1 and the chamber 4 are both open at one end. The slot ispreferably flared at its end to provide for easy insertion of a bladelongitudinally of the body,

and the chamber is threaded at its open end to receive a stopper plug 5.

Synthetic rubber wiping strips 6 are held on opposite sides of the slot1 just outside the chamber in suitable grooves. The edges of the strips6 protrude from the grooves and meet each other over a lengthcorresponding to that of a blade, but are totally enclosed in the bodyat the entrance end of the slot so as to provide easy entry for a blade.

A blade ejector slide 7 is fitted in a slot 8 in the half 2 of the body.Its blade contacting end is inserted through the slot 8 before the twohalves of the body are cemented together and is turned through to lockit in assembled position.

In use the chamber 4 is filled with a protective substance, which may beoil or grease (such as petroleum jelly) or suitable powder, the cap 5 isscrewed home and a blade is inserted longitudinally of the body throughthe flared slot in its end; the edge of the blade enters the lubricantchamber.

When required, the blade is removed transversely of the body through thenarrow slot by the operation of the slide 7 and as it is removed itsedge is wiped clean by the synthetic rubber strips 6, which contact iton both faces.

In a form of holder developed for two edged blades illustrated in Figs.3, 4 and 5, the blades are inserted and removed on a carrier 9 throughone end. Protective substance chambers 4 and wiper strips 6 are providedon either side of the body 2, 3 and the strips 6 are brought into thepath of the blade surfaces near the entrance to the chambers.

The carrier 9 may be a plastic strip provided with locating pins 10 forthe blade and may slide in and out of a longitudinal slot 11 on thebody.

The chambers 4 are filled through their ends on removal of caps 5.

Another form of holder for single edged blades is illustrated in Figs. 6and 7, it is similar in construction, but the body is formed in twoparts 2 and 3 pivoted together on a longitudinal axis 12 and so formedas to define between them a narrow slot closed at both ends by wings 13formed on the part 2.

In this form, the two parts of the body can be swung back about thepivot to permit the insertion of a blade and closed together once it isinserted.

The two parts are maintained together on removal of the blade so thatwiper strips 6 are effective to clean the faces of the blade edge.

It will be understood that the invention is not restricted to thedetails of the specific embodiments described which may be variedwithout departing from the broad ideas underlying it.

I claim:

1. A safety razor blade holder for double edged blades, having asubstantially rectangular body, a slot in an end wall of said body, apair of receptacles for protective substance formed in said body nearthe longitudinal sides thereof, said receptacles affording inwardlyfacing narrow slots and each being sealed by a pair of circularsectioned wiping strips which have parts in the withdrawal path of ablade adapted to clean the edges thereof on its withdrawal and to retainthe protective substance within the receptacles.

2. A safety razor blade holder according to claim 1 wherein the saidwiping strips are held in oppositely disposed grooves in said body.

3. A safety razor blade holder according to claim 1 Wheete'in a slidablemember shaped to hold a blade is fitel 9 a to b slidabl hroug theslotted nd all of the body. i

4. A safety razor blade holder according to claim 1 wherein the saidwiping strips are bent outwardly at the ends thereof adjacent theslotted end wall. 7

5. A safety razor blade holder according to claim 1 wherein theprotective substance is oil.

6. A safety razor blade holder according to claim wherein the protectivesubstance is a powder. 7

References Cited in the file of this patent UNITED STATES PATENTS

